EyeCap knowledgebase

Category » EM 935

There were 14 articles found in this category:

1. Is it possible to measure the endothelium through swollen or opaque corneas
   The cornea is part of the optical system that provides the endothelial image to the specular microscope. If the cornea is compromised then this will affect the image quality. It may still be possible to image the endothelium through corneal oedema but we advise that you examine the data carefull ...
2. What is the accuracy of the EM935
   The accuracy of the ME 935 is defined as 747Pix/mm +/- 2.5%. Best reproducibility is achieved if the endothelium images are analyzed in a semi automatic manner. This means the images are taken automatically, the area of interest is drawn only where the cells are easily visible and the automatic ...
3. In Alignment mode, slit does not become narrow but fades out
   Check if the base plate/pin is well connected and unit is centered. If this is the case and you have still problems, please contact our service department.
4. Alignment mode holding hand in front of the lens image is grey
   In Alignment mode the image on the screen should be black. If it is otherwise (grey) the sensitivity of the camera is not correct. Please contact our service department.
5. Alignment mode, with slit on 0.2 no image does appear, but on 3mm it does
   Base plate height is not set correctly. Possibly the wrong base plate used, contact our service department.
6. Error "This unlicenced copy of IMAQ Vision may be used for demo purposes only" comes up
   Please install the runtime license from CD. Look at Folder x:\Run-Time-License and start the Program vision61rte.exe
7. Can I use longer lengths of Firewire cables
   The maximum cable length is 5m. Longer lengths will reduce the transfer speed and this will cause problems. Always use a good quality cable.
8. Can we place the EM935 on the left hand side
   No. This is not possible because the software is programmed to search for the corneal reflex on the left of specular endothelial reflex.
9. What is the EM 935
   EM935 is a slit lamp mounted endothelium microscope designed to make a rapid, automatic analysis of the corneal endothelium and conveniently fits onto most slit lamps. Image capture is automatic and analysis includes cell density and morphology data
10. Can the EM935 do any other high magnification imaging (i.e. lens pathology)
    The EM935 has been designed specifically for specular reflectance images of the corneal endothelium. The magnification of ~200 x limits the use for other types of imaging. Some users have expressed an interest in high magnification black and white images and we will keep all Haag-streit distrib ...
11. Possible to use the EM935 for corneal grafts
    The EM 935 is designed to measure the corneal endothelium ‘in vivo’ and as such has not been used on graft donor material or eyes. There are instruments available for this specialized work and we suggest the EAT from Rhine-Tec http://www.rhine-tec.de/gb-hp-produkte-EAT.htm
12. Can EM 935 software handle measurement of endothelium with guttata
    Measuring eyes with guttata is a challenge for all specular microscopes as the software has trouble differentiating the difference between a cell and guttata. The best and fastest method is to measure automatically and then correct manually but this depends on the eye. Alternatively you can R ...
13. Can EM 935 software run on a touch panel pc
    The processing power required by the EM935 is minimal and therefore any PC or laptop should be capable. If the Firewire port is not powered (i.e. on most laptops) then the power supply for the camera must be used. In our experience the best solution is to use a 6 pin firewire port as this means ...
14. Can the EM935 do any other high magnification imaging (i.e. lens pathology)
    The EM935 has been designed specifically for specular reflectance images of the corneal endothelium. As it is around 200 x magnification it is not much used for anything else. In theory it could be used to image most parts of the anterior chamber at 200 x in black and white but the software is l ...